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This short paper aims to discuss the effectiveness and performance of classical machine learning approaches for Human Activity Recognition (HAR). It proposes two important models - Extra Trees and Stacked Classifier with the emphasize on…

机器学习 · 计算机科学 2020-09-23 Ambareesh Ravi

Automatic methods and metrics that assess various quality criteria of automatically generated texts are important for developing NLG systems because they produce repeatable results and allow for a fast development cycle. We present here an…

计算与语言 · 计算机科学 2020-06-25 Erion Çano , Ondřej Bojar

One of the most widespread multi-criteria decision-making methods is the Analytic Hierarchy Process (AHP). AHP successfully combines the pairwise comparisons method and the hierarchical approach. It allows the decision-maker to set…

人工智能 · 计算机科学 2022-05-24 Anna Kędzior , Konrad Kułakowski

Moving beyond evaluations that collapse performance across heterogeneous prompts toward fine-grained evaluation at the prompt level, or within relatively homogeneous subsets, is necessary to diagnose generative models' strengths and…

人工智能 · 计算机科学 2026-03-05 Felipe Maia Polo , Aida Nematzadeh , Virginia Aglietti , Adam Fisch , Isabela Albuquerque

Automatic assessment needs short answer based evaluation and automated assessment. Various techniques used are Ontology, Semantic similarity matching and Statistical methods. An automatic short answer assessment system is attempted in this…

其他计算机科学 · 计算机科学 2010-11-09 P. Selvi , A. K. Bnerjee

Many different machine learning algorithms exist; taking into account each algorithm's hyperparameters, there is a staggeringly large number of possible alternatives overall. We consider the problem of simultaneously selecting a learning…

机器学习 · 计算机科学 2013-03-08 Chris Thornton , Frank Hutter , Holger H. Hoos , Kevin Leyton-Brown

The evaluation of generative models for natural image tasks has been extensively studied. Similar protocols and metrics are used in cases with unique particularities, such as Handwriting Generation, even if they might not be completely…

计算机视觉与模式识别 · 计算机科学 2024-09-05 Konstantina Nikolaidou , George Retsinas , Giorgos Sfikas , Marcus Liwicki

Machine learning approaches applied to NLP are often evaluated by summarizing their performance in a single number, for example accuracy. Since most test sets are constructed as an i.i.d. sample from the overall data, this approach overly…

We describe the problem of aggregating the label predictions of diverse classifiers using a class taxonomy. Such a taxonomy may not have been available or referenced when the individual classifiers were designed and trained, yet mapping the…

人工智能 · 计算机科学 2015-12-02 Amrita Saha , Sathish Indurthi , Shantanu Godbole , Subendhu Rongali , Vikas C. Raykar

Rerunning a metric-based evaluation should be more straightforward, and results should be closer, than in a human-based evaluation, especially where code and model checkpoints are made available by the original authors. As this report of…

计算与语言 · 计算机科学 2024-05-14 Michela Lorandi , Anya Belz

Tagging facilitates information retrieval in social media and other online communities by allowing users to organize and describe online content. Researchers found that the efficiency of tagging systems steadily decreases over time, because…

计算机与社会 · 计算机科学 2021-04-05 Tiago Santos , Keith Burghardt , Kristina Lerman , Denis Helic

The large size and complex decision mechanisms of state-of-the-art text classifiers make it difficult for humans to understand their predictions, leading to a potential lack of trust by the users. These issues have led to the adoption of…

Attempts to incorporate topological information in supervised learning tasks have resulted in the creation of several techniques for vectorizing persistent homology barcodes. In this paper, we study thirteen such methods. Besides describing…

Most Natural Language Generation systems need to produce accurate texts. We propose a methodology for high-quality human evaluation of the accuracy of generated texts, which is intended to serve as a gold-standard for accuracy evaluations…

计算与语言 · 计算机科学 2020-11-10 Craig Thomson , Ehud Reiter

We propose a novel hierarchical approach for multiple rotation averaging, dubbed HARA. Our method incrementally initializes the rotation graph based on a hierarchy of triplet support. The key idea is to build a spanning tree by prioritizing…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Seong Hun Lee , Javier Civera

Evaluating text summarization is a challenging problem, and existing evaluation metrics are far from satisfactory. In this study, we explored ChatGPT's ability to perform human-like summarization evaluation using four human evaluation…

计算与语言 · 计算机科学 2023-04-06 Mingqi Gao , Jie Ruan , Renliang Sun , Xunjian Yin , Shiping Yang , Xiaojun Wan

Unlabeled data is often used to learn representations which can be used to supplement baseline features in a supervised learner. For example, for text applications where the words lie in a very high dimensional space (the size of the…

计算与语言 · 计算机科学 2012-07-03 Paramveer Dhillon , Jordan Rodu , Dean Foster , Lyle Ungar

Automatic evaluation metrics capable of replacing human judgments are critical to allowing fast development of new methods. Thus, numerous research efforts have focused on crafting such metrics. In this work, we take a step back and analyze…

计算与语言 · 计算机科学 2022-10-10 Pierre Colombo , Maxime Peyrard , Nathan Noiry , Robert West , Pablo Piantanida

Human ratings are currently the most accurate way to assess the quality of an image captioning model, yet most often the only used outcome of an expensive human rating evaluation is a few overall statistics over the evaluation dataset. In…

计算机视觉与模式识别 · 计算机科学 2019-11-25 Paul Hongsuck Seo , Piyush Sharma , Tomer Levinboim , Bohyung Han , Radu Soricut

Natural language processing (NLP) applied to information retrieval (IR) and filtering problems may assign part-of-speech tags to terms and, more generally, modify queries and documents. Analytic models can predict the performance of a text…

cmp-lg · 计算机科学 2008-02-03 Robert M. Losee